CN103595347A - Solar energy power and heat cogeneration system - Google Patents
Solar energy power and heat cogeneration system Download PDFInfo
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- CN103595347A CN103595347A CN201210289820.8A CN201210289820A CN103595347A CN 103595347 A CN103595347 A CN 103595347A CN 201210289820 A CN201210289820 A CN 201210289820A CN 103595347 A CN103595347 A CN 103595347A
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention belongs to the technical field of solar energy application, and specifically relates to a solar energy power and heat cogeneration system. Since solar energy is intermittent unstable energy, when the solar energy satisfies electricity demands in a power supply mode, assistance of electric power storage is needed. Aimed at characteristics that heat application and heat storage are little influenced by intermittent power supply, the invention provides a solar energy power and heat cogeneration system. Using a power generation portion of heat supply in a power and heat cogeneration method, electricity can be regulated to a power supply portion of electricity utilization in an off-peak period, making power supply more stable, and meanwhile burden of storage batteries is eased and life of the storage batteries is prolonged. A technical scheme of directly supplying heat and storing heat on the premise that power requirement is ensured is used, and a problem of solar energy storage is solved by low investment. Under common environment conditions, converting light to electricity provides more applications and ways for people and is more convenient. Compared with an optothermal and heat-electricity method of heat and power cogeneration, the light-electricity and electricity-heat method is advantaged by simple and flexible, and the method is easy to realize, so solar energy power and heat cogeneration is more suitable for requirements of ordinary people than heat and power cogeneration.
Description
Technical field
The invention belongs to application of solar, have and relate to a kind of solar electrothermal co-feeding system.
Background technology
In distributed energy application, more and more pursued, particularly the application of the new forms of energy such as solar energy, obtains the support of national governments, also obtains people's favor.In the new forms of energy application such as solar energy, cogeneration is a kind of existing photo-thermal electricity energy supply scheme.Its technical characterictic is that solar irradiation is converged to liquid heat to evaporating temperature, drives steam-driven generator generating, and waste heat can be used as supplying heat source, realizes cogeneration.Such system need to have certain scale, although improved the utilance of solar energy, within the scope of certain scale, need to distribute and transmission by secondary energy sources, has increased investment and loss.
Whole world expert generally acknowledges: the technical goal of new forms of energy Distributed Application is to apply nearby, directly dissolves.Target for this reason, the present invention proposes to realize application nearby for individual consumer, the technical scheme of the new forms of energy distributed energy supply application of directly dissolving, overcomes investment and loss that prior art needs certain scale and increases secondary distribution and transmission, realizes the electric heating co-feeding system of high performance-price ratio.
Through investigation, can find that a considerable amount of civilian electric power is power supply and for thermal, if hot water for life and heating are with for warm civil electric appliance.Because solar energy is the unstable energy of batch (-type), when supply power mode meets need for electricity, need the help of electric power storage; And be subject to the impact of intermittent power supply little with heat and accumulation of heat, the power generation part of heat supply in electric heating alliance mode, the power pack that can adjust to electricity consumption in the paddy electricity period, make power supply more steady, alleviate the burden of storage battery simultaneously, can extend the life-span of storage battery, adopted photoelectric heat alliance mode, can make solar electric power supply system reduce storage battery proportioning, system investment is greatly reduced.
Summary of the invention
In order to overcome the deficiency of prior art and system, meet the demand that vast general public applied solar energy solves electricity consumption and heating, the present invention proposes a kind of solar electrothermal co-feeding system, comprise electrification component array A, electrification component array B, photovoltaic control circuit A, photovoltaic control circuit B, electric power dispensable circuit A, electric power dispensable circuit B, heat supply power bus-bar, power supply power bus-bar, charge-discharge circuit, batteries A, batteries B, inverter DC/AC, Alternating Current Power Supply end, DC power supply terminal, electrical heaters, heat preservation hot water tank, hot water outlet, water inlet, electric-controlled switch, for electric heating power bus-bar and system controller, system power supply, system bus forms,
It is characterized in that: electrification component array A, photovoltaic control circuit A, electric power dispensable circuit A are connected in turn and electrification component array B, photovoltaic control circuit B, electric power dispensable circuit B is connected in turn and pass through power supply power bus-bar connects charge-discharge circuit to batteries A and batteries B the formation electric power storage electrical path of generating electricity;
Electrification component array A, photovoltaic control circuit A, electric power dispensable circuit A are connected in turn and electrification component array B, photovoltaic control circuit B, electric power dispensable circuit B is connected in turn and pass through power supply power bus-bar connection charge-discharge circuit to inverter DC/AC and Alternating Current Power Supply end, formation photoelectricity Alternating Current Power Supply electrical path;
Electrification component array A, photovoltaic control circuit A, electric power dispensable circuit A are connected in turn and electrification component array B, photovoltaic control circuit B, electric power dispensable circuit B is connected in turn and pass through power supply power bus-bar connects charge-discharge circuit to DC power supply terminal, the formation photovoltaic DC electrical path of powering;
Electrification component array A, photovoltaic control circuit A, electric power dispensable circuit A are connected in turn and electrification component array B, photovoltaic control circuit B, electric power dispensable circuit B is connected in turn and connect charge-discharge circuit to electric-controlled switch by power supply power bus-bar connects for electric heating power bus-bar and connect the electrical heaters in heat preservation hot water tank by heat supply power bus-bar, form for electric heating electrical path, in the period of not generating electricity, by electric power storage emergency service, heated or the remaining electricity of powering carries out accumulation of energy with heat storage type;
Electrification component array A, photovoltaic control circuit A, electric power dispensable circuit A are connected in turn and electrification component array B, photovoltaic control circuit B, electric power dispensable circuit B is connected in turn and by heat supply power bus-bar connection electrical heaters, form photovoltaic heat supply electrical path, carry out photovoltaic electric power directly heating and accumulation of heat;
Heat preservation hot water tank connects respectively hot water outlet and water inlet, forms domestic water and adds thermal output and water supply loop, and heat preservation hot water tank possesses the effect of accumulation of heat accumulation of energy simultaneously;
System power supply is connected system controller and DC power supply terminal respectively, the construction system power supply that supplies power with double circuit, and system power supply is system power supply in system cold start-up and generating and electric power storage when not enough;
System controller is connected with photovoltaic control circuit A, photovoltaic control circuit B electric power dispensable circuit A, electric power dispensable circuit B, charge-discharge circuit and electric-controlled switch by system bus, forms and controls and signal link, carries out information interaction and implements corresponding control;
A kind of solar electrothermal co-feeding system of the present invention, the feature of its control method is: system controller (17) is monitored the energy output of electrification component array A, electrification component array B by system bus, the generating of generating period electrification component array A, electrification component array B is regulated and controled by system controller and is preferably power supply power bus-bar by electric power dispensable circuit A and electric power dispensable circuit B to power, remaining electricity is powered to electrical heaters by heat supply power bus-bar, carry out photovoltaic electric power directly heating and accumulation of heat, realize electric heating alliance;
System controller is monitored the electric weight of batteries A, batteries B by charge-discharge circuit, judge in real time allotment and by electric power dispensable circuit A, electric power dispensable circuit B, electric-controlled switch and for electric heating power bus-bar, the remaining electricity of charging and generating power supply is adjusted to heat supply power bus-bar, the electric power of realizing electric power storage and remaining electricity heats and accumulation of heat to electrical heaters by heat supply power bus-bar.
The present invention is directed to solar energy is the unstable energy of batch (-type), while meeting need for electricity with supply power mode, needs the help of electric power storage; And be subject to the intermittent little characteristic of impact of powering with heat and accumulation of heat, a kind of solar electrothermal co-feeding system that the present invention proposes, utilize the power generation part of heat supply in electric heating alliance mode, the power pack that can adjust to electricity consumption in the paddy electricity period, make power supply more steady, alleviate the burden of storage battery simultaneously, can extend the life-span of storage battery; Employing is ensureing under the prerequisite of power demands, and the technical scheme of direct heating and accumulation of heat has solved the difficult problem of solar energy accumulation with extremely low investment; And, under the condition of conventional environment, transferring light to electricity can be more and convenient to people's purposes and use approach, the first photo-thermal of relative cogeneration is thermoelectricity mode again, the present invention adopt first photoelectricity again electrothermal method have simply, flexibly, be convenient to the advantage that realizes, so solar electrothermal alliance is more suitable for general common people's demand than cogeneration.
Accompanying drawing explanation
Accompanying drawing is a kind of schematic block diagram of solar electrothermal co-feeding system.
Embodiment
As examples of implementation, by reference to the accompanying drawings a kind of solar electrothermal co-feeding system is described, still, technology of the present invention and scheme are not limited to the content that the present embodiment provides.
Accompanying drawing has provided a kind of schematic block diagram of solar electrothermal co-feeding system.Shown in figure, a kind of solar electrothermal co-feeding system that the present invention proposes, comprise electrification component array A (1a), electrification component array B (1b), photovoltaic control circuit A (2a), photovoltaic control circuit B (2b), electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), heat supply power bus-bar (4), power supply power bus-bar (5), charge-discharge circuit (6), batteries A (7a), batteries B (7b), inverter DC/AC (8), Alternating Current Power Supply end (9), DC power supply terminal (10), electrical heaters (11), heat preservation hot water tank (12), hot water outlet (13), water inlet (14), electric-controlled switch (15), for electric heating power bus-bar (16) and system controller (17), system power supply (18), system bus (19) forms,
It is characterized in that: electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connects charge-discharge circuit (6) to batteries A (7a) and batteries B (7b) the formation electric power storage electrical path of generating electricity;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connection charge-discharge circuit (6) to inverter DC/AC (8) and Alternating Current Power Supply end (9), formation photoelectricity Alternating Current Power Supply electrical path;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connects charge-discharge circuit (6) to DC power supply terminal (10), the formation photovoltaic DC electrical path of powering;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) is connected and electrification component array B (1b) in turn, photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and passes through power supply power bus-bar (5) connection charge-discharge circuit (6) to electric-controlled switch (15) and connects for electric heating power bus-bar (16) and connect the electrical heaters (11) in heat preservation hot water tank (12) by heat supply power bus-bar (4), form for electric heating electrical path, in the period of not generating electricity, by electric power storage emergency service, heated or the remaining electricity of powering carries out accumulation of energy with heat storage type,
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and by heat supply power bus-bar (4) connection electrical heaters (11), form photovoltaic heat supply electrical path, carry out photovoltaic electric power directly heating and accumulation of heat;
Heat preservation hot water tank (12) connects respectively hot water outlet (13) and water inlet (14), forms domestic water and adds thermal output and water supply loop, and heat preservation hot water tank (12) possesses the effect of accumulation of heat accumulation of energy simultaneously;
System power supply (18) is connected system controller (17) and DC power supply terminal (10) respectively, the construction system power supply that supplies power with double circuit, and system power supply (18) is system power supply when system cold start-up and generating and electric power storage deficiency;
System controller (17) is connected with photovoltaic control circuit A (2a), photovoltaic control circuit B (2b) electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), charge-discharge circuit (6) and electric-controlled switch (15) by system bus (19), form and control and signal link, carry out information interaction and implement corresponding control;
A kind of solar electrothermal co-feeding system of the present invention, the feature of its control method is: system controller (17) is by system bus (19) monitoring electrification component array A (1a), the energy output of electrification component array B (1b), generating period electrification component array A (1a), the generating of electrification component array B (1b) is regulated and controled by system controller (17) and passes through electric power dispensable circuit A (3a) and electric power dispensable circuit B (3b) to be preferably power supply power bus-bar (5) power supply, remaining electricity is given electrical heaters (11) power supply by heat supply power bus-bar (4), carry out photovoltaic electric power directly heating and accumulation of heat, realize electric heating alliance,
System controller (17) is by the electric weight of charge-discharge circuit (6) monitoring batteries A (7a), batteries B (7b), judge in real time and allocate and pass through electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), electric-controlled switch (15) and for electric heating power bus-bar (16), the remaining electricity of charging and generating power supply be adjusted to heat supply power bus-bar (4), the electric power of realizing electric power storage and remaining electricity heats and accumulation of heat to electrical heaters (11) by heat supply power bus-bar (4).
A kind of solar electrothermal co-feeding system that the present invention proposes, according to the ratio of heat supply electricity consumption and electricity consumption power supply, electrification component is divided into two groups and the above regulation and control of being more convenient for, when power consumption ratio is large, can not divide into groups, when DC output end power is larger, also multichannel output be can be divided into, transmission of electricity and safety management are convenient to.The present invention is when electrification component generates electricity, and guarantees the electricity consumption of electricity consumption power supply and electric power storage, and unnecessary electric weight directly heats and carries out accumulation of energy with heat energy form simultaneously.
Photovoltaic module generating of the present invention, using a part of electric power as power supply, heat supply is carried out in dump energy direct-furnish heating simultaneously, improved on the one hand the stability of generating period power supply, by storage heating, solved a difficult problem for low-cost accumulation of energy simultaneously, improved the cost performance of system, realized low-cost high-efficiency and utilized solar energy.
Claims (2)
1. a solar electrothermal co-feeding system, comprise electrification component array A (1a), electrification component array B (1b), photovoltaic control circuit A (2a), photovoltaic control circuit B (2b), electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), heat supply power bus-bar (4), power supply power bus-bar (5), charge-discharge circuit (6), batteries A (7a), batteries B (7b), inverter DC/AC (8), Alternating Current Power Supply end (9), DC power supply terminal (10), electrical heaters (11), heat preservation hot water tank (12), hot water outlet (13), water inlet (14), electric-controlled switch (15), for electric heating power bus-bar (16) and system controller (17), system power supply (18), system bus (19) forms,
It is characterized in that: electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connects charge-discharge circuit (6) to batteries A (7a) and batteries B (7b) the formation electric power storage electrical path of generating electricity;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connection charge-discharge circuit (6) to inverter DC/AC (8) and Alternating Current Power Supply end (9) formation photoelectricity Alternating Current Power Supply electrical path;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and pass through power supply power bus-bar (5) connects charge-discharge circuit (6) to DC power supply terminal (10), the formation photovoltaic DC electrical path of powering;
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) is connected and electrification component array B (1b) in turn, photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and passes through power supply power bus-bar (5) connection charge-discharge circuit (6) to electric-controlled switch (15) and connects for electric heating power bus-bar (16) and connect the electrical heaters (11) in heat preservation hot water tank (12) by heat supply power bus-bar (4), form for electric heating electrical path, in the period of not generating electricity, by electric power storage emergency service, heated or the remaining electricity of powering carries out accumulation of energy with heat storage type,
Electrification component array A (1a), photovoltaic control circuit A (2a), electric power dispensable circuit A (3a) are connected in turn and electrification component array B (1b), photovoltaic control circuit B (2b), electric power dispensable circuit B (3b) is connected in turn and by heat supply power bus-bar (4) connection electrical heaters (11), form photovoltaic heat supply electrical path, carry out photovoltaic electric power directly heating and accumulation of heat;
Heat preservation hot water tank (12) connects respectively hot water outlet (13) and water inlet (14), forms domestic water and adds thermal output and water supply loop, and heat preservation hot water tank (12) possesses the effect of accumulation of heat accumulation of energy simultaneously;
System power supply (18) is connected system controller (17) and DC power supply terminal (10) the construction system power supply that supplies power with double circuit respectively, and system power supply (18) is system power supply when system cold start-up and generating and electric power storage deficiency;
System controller (17) is connected with photovoltaic control circuit A (2a), photovoltaic control circuit B (2b) electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), charge-discharge circuit (6) and electric-controlled switch (15) by system bus (19), form and control and signal link, carry out information interaction and implement corresponding control.
2. according to claim 1 solar electrothermal co-feeding system, the feature of its control method is: system controller (17) is by system bus (19) monitoring electrification component array A (1a), the energy output of electrification component array B (1b), generating period electrification component array A (1a), the generating of electrification component array B (1b) is regulated and controled by system controller (17) and passes through electric power dispensable circuit A (3a) and electric power dispensable circuit B (3b) to be preferably power supply power bus-bar (5) power supply, remaining electricity is given electrical heaters (11) power supply by heat supply power bus-bar (4), carry out photovoltaic electric power directly heating and accumulation of heat, realize electric heating alliance,
System controller (17) is by the electric weight of charge-discharge circuit (6) monitoring batteries A (7a), batteries B (7b), judge in real time and allocate and pass through electric power dispensable circuit A (3a), electric power dispensable circuit B (3b), electric-controlled switch (15) and for electric heating power bus-bar (16), the remaining electricity of charging and generating power supply be adjusted to heat supply power bus-bar (4), the electric power of realizing electric power storage and remaining electricity heats and accumulation of heat to electrical heaters (11) by heat supply power bus-bar (4).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116102385A (en) * | 2022-12-27 | 2023-05-12 | 安顺久联民爆有限责任公司 | Intelligent heat supply control system |
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